# Senary

## Base-6 numeral system / From Wikipedia, the free encyclopedia

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A **senary** (/ˈsiːnəri, ˈsɛnəri/) numeral system (also known as **base-6**, **heximal**, or **seximal**) has six as its base. It has been adopted independently by a small number of cultures. Like the decimal base 10, the base is a semiprime, though it is unique as the product of the only two consecutive numbers that are both prime (2 and 3). As six is a superior highly composite number, many of the arguments made in favor of the duodecimal system also apply to the senary system.